How To Add Decal Material To SpawnDecalAttached in C++?

I’m trying to create a decal in c++, but I’m getting stuck on the first parameter because I can’t choose what decal material I want to use like in blueprint. I’m using the function UGameplayStatics::SpawnDecalAttached by the way.

So far, my code is

void ACPP_Character::ShootLine() {
auto camManager = UGameplayStatics::GetPlayerCameraManager(this, 0);
FVector startCameraLocation = camManager->GetCameraLocation();
FVector endCameraLocation = startCameraLocation + (camManager->GetActorForwardVector() * 50000);
FHitResult outHit;
TArray<TEnumAsByte> traceObjectTypes;
traceObjectTypes.Add(UEngineTypes::ConvertToObjectType(ECollisionChannel::ECC_WorldStatic));
TArray<AActor*> ignore;
ignore.Add(GetOwner());

bool result = UKismetSystemLibrary::LineTraceSingleForObjects(this, startCameraLocation, endCameraLocation,
    traceObjectTypes, false, ignore, EDrawDebugTrace::Persistent, OUT outHit, true);
if (result) {
    SpawnBulletHole(outHit);
}

}

void ACPP_Character::SpawnBulletHole(const FHitResult & HitResult) {
static ConstructorHelpers::FObjectFinder MaterialFinder(TEXT(“/Game/Materials/BulletHoleMaterial.BulletHoleMaterial”));

if (MaterialFinder.Succeeded()) {
    UGameplayStatics::SpawnDecalAttached(
        MaterialFinder.Object,
        FVector(20, 20, 24),
        HitResult.GetComponent(),
        NAME_None,
        HitResult.Location,
        UKismetMathLibrary::MakeRotFromX(HitResult.Normal),
        EAttachLocation::KeepWorldPosition,
        10.0f
    );
}

}

but the MaterialFinder does not work and is causing a breakpoint.